The fact that Google has made APIs available for all sorts of integration projects is among the many things that makes the search engine leader wonderful. I've seen several great projects built on top of Google, beginning with Marumushi's graphical view of Google News (which has been my browser homepage ever since I discovered it). The latest innovation, Montage-a-Google, comes from Grant Robinson and is a simple, yet elegant montage maker built from the results of a google image search.